Contactor with dustproof structure
By installing dust-proof components on the contactor, including external housing, openings, dust-proof cover, telescopic block and spring, the poor contact problem caused by dust is solved, and dust masking and use is achieved when not in use Convenient wiring at the same time improves the convenience of wiring and dustproof effect.
Patent Information
- Application Number
- CN202421114547.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During long-term use, existing contactors are prone to poor contacts between static contacts and movable contacts due to dust entering during long-term use, resulting in wiring failures, and lack of dust-proof structures to lead to inconvenience in use.
A contactor with a dust-proof structure is designed, and dust shielding and automatic clamping of dust is achieved by installing dust-proof components on the surface of the contactor body, including an external housing, an opening, a dust-proof cover, a telescopic block, a cover plate and a spring. Holding function ensures that dust is prevented from entering when wiring is not required, and it is easy to adjust and install when wiring is required.
Effectively prevent dust from entering, ensure that the contactor remains clean when not in use, convenient for wiring operations when used, and automatically close after wiring is completed, improving the convenience of wiring and dustproof effect.
Smart Images
Figure CN222300570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dustproofing of contactors, in particular to a contactor with a dustproof structure. Background Art
[0002] Contactor is a widely used switch electrical appliance, which uses electromagnetic, pneumatic or hydraulic principles to realize the on and off of the main circuit through the control circuit. Contactor has the advantages of strong current breaking capacity, rapid action, safe operation, frequent operation and remote control, but it cannot cut off the short-circuit current, so contactor usually has to be used in conjunction with fuse. The main control object of contactor is the motor, and it can also be used to control other power loads, such as welding machines, electric furnaces, etc.
[0003] Most of the existing contactors are directly installed on the surface of the working position. In order to facilitate the wiring, there is generally no corresponding dust-proof structure on the outside. However, if dust enters the inside of the device during long-term use, it is easy to cause poor contact between the static contact and the moving contact, thereby causing wiring failure, which is inconvenient during use.
[0004] Therefore, we propose a contactor with a dust-proof structure to solve the above problems. Utility Model Content
[0005] The utility model provides a contactor with a dustproof structure, which solves the problem that most of the existing contactors mentioned in the background technology are directly installed on the surface of the working position, and generally do not have a corresponding dustproof structure on the outside to facilitate wiring. However, if dust enters the inside of the device during long-term use, it is easy to cause poor contact between the static contact and the moving contact, thereby causing wiring failure and inconvenience during use.
[0006] The utility model provides the following technical solution: a contactor with a dustproof structure, comprising a contactor body, dustproof components are installed at the upper and lower ends of the contactor body, a plurality of screw holes are opened on the surface of the contactor body, a plurality of mounting grooves are opened inside the contactor body, mounting screws are threadedly connected in the mounting grooves, wiring holes are opened at the upper ends of the mounting screws, the dustproof component comprises an external shell fixedly installed on the surface of the contactor body, a plurality of openings are opened on the side of the external shell, the openings correspond to the screw holes one by one, and dustproof covers are rotatably installed in the openings.
[0007] As an optional solution described in the utility model, wherein: a plurality of slots are opened at the upper end of the external shell, and the slots correspond to the positions of the wiring holes one by one.
[0008] As an optional solution described in the utility model, wherein: telescopic blocks are fixedly installed on both sides of the plurality of the slots, and a reserved hole is commonly opened between two of the telescopic blocks.
[0009] As an optional solution described in the utility model, wherein: a fixed block is fixedly installed on the upper end of the telescopic block on one side, a cover plate is rotatably installed on the fixed block, and the cover plate is rotatably connected in the reserved hole.
[0010] As an optional solution described in the present invention, a spring is fixedly installed between the inner wall of the telescopic block and the side wall of the external shell.
[0011] As an optional solution described in the utility model, wherein: the external shell is engaged with and clamped on the surface of the contactor body through a plurality of grooves on the surface of the contactor body.
[0012] The utility model has the following beneficial effects:
[0013] 1. After the contactor body is installed, the dustproof component can be installed on its surface. When the contactor body has an unused wiring position, the screw hole at that position can be covered by the dustproof cover to prevent dust and debris from entering. When the wiring position on that side needs to be used for wiring, the dustproof cover is rotated to open the opening. At this time, the screw at that position can be adjusted through the opening. After the installation is completed, the opening can be covered with the dustproof cover. The contactor with a dustproof structure has a simple structure. When wiring is not required, the screw hole can be covered to prevent dust from entering. When wiring is required, the dustproof cover can be rotated to open the opening to adjust the mounting screw.
[0014] 2. With the cooperation between the slots, telescopic blocks, reserved holes, cover plates, fixed blocks and springs, the device can open the wiring holes for wiring through simple operations when wiring is needed. After the wiring is completed, the connecting wires can be automatically clamped under the action of the telescopic blocks, and the wiring holes can be closed again, which has a better dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0017] Figure 3 This is a schematic diagram of the structure of the dustproof component of the utility model.
[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the dustproof component of the utility model.
[0019] In the figure: 1. Contactor body; 11. Screw hole; 12. Mounting slot; 13. Mounting screw; 14. Wiring hole; 2. Dustproof component; 21. External shell; 22. Opening; 23. Dust cover; 24. Slot; 25. Telescopic block; 26. Reserved hole; 27. Cover plate; 28. Fixing block; 29. Spring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example 1
[0022] See also Figure 1-Figure 3 A contactor with a dustproof structure includes a contactor body 1, a dustproof assembly 2 is installed at the upper and lower ends of the contactor body 1, a plurality of screw holes 11 are opened on the surface of the contactor body 1, a plurality of mounting grooves 12 are opened inside the contactor body 1, mounting screws 13 are threadedly connected in the mounting grooves 12, and wiring holes 14 are opened at the upper ends of the mounting screws 13. The dustproof assembly 2 includes an external shell 21 fixedly installed on the surface of the contactor body 1, and a plurality of openings 22 are opened on the side of the external shell 21, and the openings 22 correspond to the screw holes 11 one by one, and dustproof covers 23 are rotatably installed in the openings 22.
[0023] After the contactor body 1 is installed, the dustproof component 2 can be installed on its surface. When the contactor body 1 has an unused wiring position, the screw hole 11 at that position can be covered by the dustproof cover 23 to prevent dust and debris from entering. When the wiring position on that side needs to be used for wiring, the dustproof cover 23 can be rotated to open the opening 22. At this time, the screw at that position can be adjusted through the opening 22. After the installation is completed, the opening 22 can be covered by the dustproof cover 23. The device has a simple structure, and can cover the screw hole 11 when wiring is not required to prevent dust from entering. When wiring is required, the dustproof cover 23 can be rotated to open the opening 22 to adjust the mounting screw 13.
[0024] Example 2
[0025] See also Figure 2-Figure 4 A plurality of slots 24 are provided at the upper end of the outer shell 21 , and the slots 24 correspond to the positions of the wiring holes 14 one by one. With the cooperation among the outer shell 21 , the slots 24 and the wiring holes 14 , components shielding the wiring holes 14 can be installed in the slots 24 .
[0026] Telescopic blocks 25 are fixedly installed on both sides of the multiple slots 24, and a reserved hole 26 is provided between the two telescopic blocks 25. With the cooperation between the slots 24, the telescopic blocks 25 and the reserved hole 26, the upper end of the wiring hole 14 is covered by the two movable telescopic blocks 25.
[0027] A fixing block 28 is fixedly installed on the upper end of the telescopic block 25 on one side, and a cover plate 27 is rotatably installed on the fixing block 28. The cover plate 27 can be rotatably connected in the reserved hole 26. With the cooperation between the telescopic block 25, the fixing block 28, the cover plate 27 and the reserved hole 26, the wiring clamp can be clamped in the reserved hole 26 through the telescopic block 25.
[0028] A spring 29 is fixedly installed between the inner wall of the telescopic block 25 and the side wall of the outer shell 21. Under the cooperation between the telescopic block 25, the outer shell 21 and the spring 29, the spring 29 can push the telescopic block 25 to the middle at the same time.
[0029] The outer shell 21 is engaged with the surface of the contactor body 1 through a plurality of grooves on the surface of the contactor body 1 .
[0030] After the contactor body 1 is installed, the outer shell 21 is clamped on its surface through the multiple grooves on the surface of the contactor body 1. When wiring is required, the dust cover 23 on the side can be opened first, and the internal mounting screws 13 can be loosened through the openings 22. At this time, the telescopic blocks 25 on the sides corresponding to the positions of the mounting screws 13 can be pulled to both sides, and the cover plate 27 can be rotated to open the reserved holes 26. At this time, the upper end of the wiring hole 14 is opened, and the connecting wire to be installed can be installed to the corresponding position of the mounting screws 13. At this time, the telescopic blocks 25 on both sides can be loosened, and the springs 29 Under the action of , the telescopic block 25 is automatically pushed toward the middle to clamp the connecting wire. The connecting wire is now located inside the reserved hole 26, and the slot 24 is sealed again by the telescopic block 25. The wire end is fixed by rotating the mounting screw 13 again to complete the wiring. After the wiring is completed, the opening 22 can be covered again by the dust cover 23. When wiring is needed, the device can open the wiring hole 14 for wiring through simple operation. After the wiring is completed, the connecting wire can be automatically clamped under the action of the telescopic block 25, and the wiring hole 14 can be closed again, and the dustproof effect is better.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A contactor with a dustproof structure, comprising a contactor body (1), characterized in that: The upper and lower ends of the contactor body (1) are both installed with a dustproof component (2), the surface of the contactor body (1) is provided with a plurality of screw holes (11), the interior of the contactor body (1) is provided with a plurality of mounting grooves (12), the mounting grooves (12) are each threadedly connected with a mounting screw (13), the upper ends of the mounting screws (13) are each provided with a wiring hole (14), the dustproof component (2) comprises an external shell (21) fixedly installed on the surface of the contactor body (1), the side of the external shell (21) is provided with a plurality of openings (22), the openings (22) correspond one-to-one to the screw holes (11), and a dustproof cover (23) is rotatably installed in each of the openings (22).
2. A contactor with a dustproof structure according to claim 1, characterized in that: A plurality of slots (24) are provided at the upper end of the external shell (21), and the positions of the slots (24) correspond one-to-one to the positions of the wiring holes (14).
3. A contactor with a dustproof structure according to claim 2, characterized in that: A telescopic block (25) is fixedly mounted on both sides of the plurality of slots (24), and a reserved hole (26) is provided between two of the telescopic blocks (25).
4. The contactor with a dustproof structure according to claim 3, characterized in that: A fixing block (28) is fixedly mounted on the upper end of the telescopic block (25) on one side, and a cover plate (27) is rotatably mounted on the fixing block (28). The cover plate (27) is rotatably connected in the reserved hole (26).
5. The contactor with a dustproof structure according to claim 4, characterized in that: A spring (29) is fixedly mounted between the inner wall of the telescopic block (25) and the side wall of the outer shell (21).
6. A contactor with a dustproof structure according to claim 5, characterized in that: The external shell (21) is engaged with and clipped onto the surface of the contactor body (1) through a plurality of grooves on the surface of the contactor body (1).